Because of the lights being driven by the light switch module, the 75 towpak has an extra ECU that gets added to drive the lights. There are aftermarket versions known as bypass relays, but the proper one works so much better, and uses the trailer warning light in the instrument pack, and can detect failure of most of the trailer lights and warn you.Rob wrote:Duncan wrote:Rob wrote:Scott - Rimmers have a good offer on towbar electrics if you need anything
For the 75? I had a look and couldn't see any for a 75 but would be very interested if I could get a spare.
Sorry Duncan on checking not the 75, why are they so different from car to car or is that a stupid question ?
Thanks DuncanDuncan wrote:Because of the lights being driven by the light switch module, the 75 towpak has an extra ECU that gets added to drive the lights. There are aftermarket versions known as bypass relays, but the proper one works so much better, and uses the trailer warning light in the instrument pack, and can detect failure of most of the trailer lights and warn you.Rob wrote:Duncan wrote:Rob wrote:Scott - Rimmers have a good offer on towbar electrics if you need anything
For the 75? I had a look and couldn't see any for a 75 but would be very interested if I could get a spare.
Sorry Duncan on checking not the 75, why are they so different from car to car or is that a stupid question ?
The ECU is the same as some BMWs (surprise surprise) but the wiring harness isn't. I've not seen a Rover one for sale for a time, and I'd like a spare ECU.
Jamie is your man for retro cruise loom fitting:-)Duncan wrote:Hi and welcome to the forum.
Rob or Mick, maybe we could move this into the jobs to be done thread? I know I have admin rights to do it but don't want to mess things up!
The guys on here are very knowledgeable and as I mentioned are keen to help people learn more about looking after and / or improving their cars. August is a quiet time on the forums (which is why we don't do an August meet) so don't worry if it takes a while for others to add.
Adding PDC ought to be straightforward, I seem to remember it could be dealer fitted anyway. It needs an aux feed which might have to be run from the front, but other than that the speaker needs adding somewhere, the reverse signal can be picked up from the feed to the reverse lamps themselves, and a ground on one of the boot earth points. I'm not sure if anyone else has retrofitted but I did it on my V6 so can certainly help.
Cruise control is harder, but at least on a diesel it's easier than a V6 if there's no wiring. I'm not sure quite what's involved, but I think someone fitted one to a diesel ZT at the July meet. Hopefully they will see the thread and offer some advice, and maybe even offer to give some pointers when you come along to a meet. Can anyone remind me who it was?
I will probably only be at the September meet for one of the two days, but I understand you might not make it then. If that happens then we can move this to the October meet thread when it opens. October might be even worse for me, as my parents are moving house sometime right around when the meet is. Hopefully I'll be there as a respite though!
sewerman wrote:Jamie is your man for retro cruise loom fitting:-)
malc wrote:Hi,
Looking for a bit of help / advice on wiring rear parking aids and cruise on a '54 plate, from what I can see I don't have the breakouts in the harness on my vehicle so it won't be as simple as 'plug and play and update the ZCS code' - I do have wiring, switches, ecu's etc.
My background is I developed of original the spec / attributes of Rover 75 and lead on MG programmes including the V8 at MGR - I can tell you all about the vehicle history but not great with electronics - worked with Duncan back in his younger days at Rover.
Regards, Malc
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